Question

I have a list with images and text, Text change in every 1-2 second .I have a custom adapter class which extends the BaseAdpater class. I want to update only the textview in listrow as data change.

I am using broadcast receiver which register when activity start and give back result in every 2 second which i want to display in listview.

The problem is when i call notifyDataSetChanged the whole listview get refreshed including icons and another textview and hang for 1-2 second. There is a big performance issue.

please give suggestion how can i handle that?

Answer 1

you can try this:

private void updateSingleRow(int listrow, String newText){
  View view = yourListView.getChildAt(listrow - yourListView.getFirstVisiblePosition());
  TextView yourText = (TextView) view.findViewById(R.id.yourId);
  yourText.setText(newText);
}